Razz - terrible call on 5th...or is it?

[eStone]

$3/6 at FTP

Players hands on 5th street:

6-4-3-A-J
6-4-3-Q-T

Jack bet out and QT called. To me it looked a very horrible call. Still, I put the hands in the calculator and here are results:

6d 4d 3d Js Ad - EV 0.769
6s 3s 4c Qd Td - EV 0.231

I was very surprised with results. Drawing to 6 (with made J) vs drawing to T is just a 3 to 1 favourite?
The pot was $29, so QT-player was getting 5-to-1 odds in the situation, where he was approx. 3-to-1 underdog. What is the correct play there? I`m still sure its a clear fold, but could someone explain it in numbers...heh

How does razz thinking go - should I try to figure out, how much will it cost for me to see the hand through (probably $18 to win $41 or 2,3-to-1) or should I do calculations for me to improve next card vs opponent bricking off?

Thanks!